MFC r287282:

Fix the exporting of SCTP association states to userland. Without this,
associations in SHUTDOWN-PENDING were never reported correctly.

5 files changed, 49 insertions, 8 deletions

diff --git a/sys/netinet/sctp_constants.h b/sys/netinet/sctp_constants.h
index d90bd25..135d46c 100644
--- a/sys/netinet/sctp_constants.h
+++ b/sys/netinet/sctp_constants.h
@@ -458,7 +458,7 @@ __FBSDID("$FreeBSD$");
 
 
 /*
- * SCTP states for internal state machine XXX (should match "user" values)
+ * SCTP states for internal state machine
  */
 #define SCTP_STATE_EMPTY		0x0000
 #define SCTP_STATE_INUSE		0x0001
diff --git a/sys/netinet/sctp_sysctl.c b/sys/netinet/sctp_sysctl.c
index 6eef6b9..1b35af7 100644
--- a/sys/netinet/sctp_sysctl.c
+++ b/sys/netinet/sctp_sysctl.c
@@ -453,7 +453,7 @@ sctp_sysctl_handle_assoclist(SYSCTL_HANDLER_ARGS)
 			if (stcb->asoc.primary_destination != NULL)
 				xstcb.primary_addr = stcb->asoc.primary_destination->ro._l_addr;
 			xstcb.heartbeat_interval = stcb->asoc.heart_beat_delay;
-			xstcb.state = SCTP_GET_STATE(&stcb->asoc);	/* FIXME */
+			xstcb.state = (uint32_t) sctp_map_assoc_state(stcb->asoc.state);
 			/* 7.0 does not support these */
 			xstcb.assoc_id = sctp_get_associd(stcb);
 			xstcb.peers_rwnd = stcb->asoc.peers_rwnd;
diff --git a/sys/netinet/sctp_usrreq.c b/sys/netinet/sctp_usrreq.c
index 76a2857..78f4508 100644
--- a/sys/netinet/sctp_usrreq.c
+++ b/sys/netinet/sctp_usrreq.c
@@ -2668,12 +2668,7 @@ flags_out:
 				error = EINVAL;
 				break;
 			}
-			/*
-			 * I think passing the state is fine since
-			 * sctp_constants.h will be available to the user
-			 * land.
-			 */
-			sstat->sstat_state = stcb->asoc.state;
+			sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
 			sstat->sstat_assoc_id = sctp_get_associd(stcb);
 			sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
 			sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
diff --git a/sys/netinet/sctputil.c b/sys/netinet/sctputil.c
index 069ed34..3030994 100644
--- a/sys/netinet/sctputil.c
+++ b/sys/netinet/sctputil.c
@@ -893,6 +893,49 @@ sctp_select_a_tag(struct sctp_inpcb *inp, uint16_t lport, uint16_t rport, int ch
 	return (x);
 }
 
+int32_t
+sctp_map_assoc_state(int kernel_state)
+{
+	int32_t user_state;
+
+	if (kernel_state & SCTP_STATE_WAS_ABORTED) {
+		user_state = SCTP_CLOSED;
+	} else if (kernel_state & SCTP_STATE_SHUTDOWN_PENDING) {
+		user_state = SCTP_SHUTDOWN_PENDING;
+	} else {
+		switch (kernel_state & SCTP_STATE_MASK) {
+		case SCTP_STATE_EMPTY:
+			user_state = SCTP_CLOSED;
+			break;
+		case SCTP_STATE_INUSE:
+			user_state = SCTP_CLOSED;
+			break;
+		case SCTP_STATE_COOKIE_WAIT:
+			user_state = SCTP_COOKIE_WAIT;
+			break;
+		case SCTP_STATE_COOKIE_ECHOED:
+			user_state = SCTP_COOKIE_ECHOED;
+			break;
+		case SCTP_STATE_OPEN:
+			user_state = SCTP_ESTABLISHED;
+			break;
+		case SCTP_STATE_SHUTDOWN_SENT:
+			user_state = SCTP_SHUTDOWN_SENT;
+			break;
+		case SCTP_STATE_SHUTDOWN_RECEIVED:
+			user_state = SCTP_SHUTDOWN_RECEIVED;
+			break;
+		case SCTP_STATE_SHUTDOWN_ACK_SENT:
+			user_state = SCTP_SHUTDOWN_ACK_SENT;
+			break;
+		default:
+			user_state = SCTP_CLOSED;
+			break;
+		}
+	}
+	return (user_state);
+}
+
 int
 sctp_init_asoc(struct sctp_inpcb *inp, struct sctp_tcb *stcb,
     uint32_t override_tag, uint32_t vrf_id)
diff --git a/sys/netinet/sctputil.h b/sys/netinet/sctputil.h
index 7df0a6c..82de736 100644
--- a/sys/netinet/sctputil.h
+++ b/sys/netinet/sctputil.h
@@ -67,6 +67,9 @@ void
 /*
  * Function prototypes
  */
+int32_t
+sctp_map_assoc_state(int);
+
 uint32_t
 sctp_get_ifa_hash_val(struct sockaddr *addr);